Device for the execution of chemical and biological reactions



FIG. 1 is an elevated perspective view of a device for the execution of chemical and biological reactions in accordance with the present invention, showing the new design.

FIG. 2 is a front view of the device for the execution of chemical and biological reactions of FIG. 1.

FIG. 3 is a top plan view of the device for the execution of chemical and biological reactions of FIG. 1.

FIG. 4 is a left side view of the device for the execution of chemical and biological reactions of FIG. 1; and,

FIG. 5 is a right side view of the device for the execution of chemical and biological reactions of FIG. 1. 

The ornamental design for a device for the execution of chemical and biological reactions, as shown and described. 